RST Digital Algorithm for Controlling the LHC Magnet Current

The LHC will require a very high precision (a few ppm) in the control of the current (13 kA) inthe main superconducting magnets. To achieve this challenging performance, severaldevelopments are made at CERN in the domain of DC current transducers, analogue to digitalconversion and digital control loops. This paper will focus on the presentation of a robustdigital algorithm. Simulation and prototype (2.4 kA) results will be presented.